CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction invocation failed when executing transaction: [Error Code: 1101] cadence runtime error: Execution failed: --> 42d8ace65591c84addb79c55c9edcb7e7129d9c46e2e1f1f6da91f867e455e1e:12:46 | 12 | self.transferToken <- collectionRef.withdraw(withdrawID: tokenID) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unexpectedly found nil while forcing an Optional value --> 34ac358b9819f79d.NFTKred:101:25 | 101 | let token <- self.ownedNFTs.remove(key: withdrawID)! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^